\begin{tikzpicture}[>=Stealth, scale=0.8, transform shape]
    \tikzset{
        pics/element/.style args={#1/#2}{
            code = {
            \node at (0, 1.3) {第 $#1$ 位};
            \draw [<-] (0, -0.1) -- (0, -0.5) node[below] {$#2$};
            }
        }
    }
    \draw (0, 0) rectangle (12, 1);
    \draw (2, 0) -- (2, 1);
    \draw (4, 0) -- (4, 1);
    \draw (6, 0) -- (6, 1);
    \draw (10, 0) -- (10, 1);

    \draw (1, 0) pic {element=1/n};
    \draw (3, 0) pic {element=2/n-1};
    \draw (5, 0) pic {element=3/n-2};
    \draw (11, 0) pic {element=m/n-m+1};
    \node at (8, 0.5) {$\cdots \cdots$};
\end{tikzpicture}
